const _excluded = ["keyPath", "indexs"],
      _excluded2 = ["name"];

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

class IndexdbHelper {
  constructor(databaseName, tbConfigs, dbVersion) {
    _defineProperty(this, "haveIndex", false);

    _defineProperty(this, "canuseIndex", false);

    _defineProperty(this, "tbConfigs", []);

    this.databaseName = databaseName;
    this.dbVersion = dbVersion || 2;
    this.tbConfigs = tbConfigs || [];

    if (window.indexedDB) {
      this.haveIndex = true;
    } else this.haveIndex = false;
  } // indexdb 初始化


  ready() {
    var _this = this;

    if (this.haveIndex) {
      if (this.db) return Promise.resolve(this.db);
      return new Promise( /*#__PURE__*/function () {
        var _ref = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2(resolve, reject) {
          var request;
          return regeneratorRuntime.wrap(function _callee2$(_context2) {
            while (1) switch (_context2.prev = _context2.next) {
              case 0:
                request = window.indexedDB.open(_this.databaseName, _this.dbVersion);

                request.onerror = () => {
                  console.log('数据库打开报错');
                  _this.canuseIndex = false;
                  reject();
                };

                request.onsuccess = /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee() {
                  return regeneratorRuntime.wrap(function _callee$(_context) {
                    while (1) switch (_context.prev = _context.next) {
                      case 0:
                        _this.db = request.result;
                        console.log('数据库打开成功');
                        _this.canuseIndex = true;
                        resolve(_this.db);

                      case 4:
                      case "end":
                        return _context.stop();
                    }
                  }, _callee);
                }));

                request.onupgradeneeded = event => {
                  _this.canuseIndex = true;
                  _this.db = event.target.result;

                  _this.initTb();

                  const transaction = event.target.transaction;

                  transaction.oncomplete = function () {
                    resolve(this.db);
                  };
                };

              case 4:
              case "end":
                return _context2.stop();
            }
          }, _callee2);
        }));

        return function (_x, _x2) {
          return _ref.apply(this, arguments);
        };
      }());
    }

    return Promise.resolve(null);
  } // 创建表


  createStore(tbName, tconfig) {
    var _this$db;

    if (!this.canuseIndex || !this.haveIndex) return;
    let objectStore;

    if (!((_this$db = this.db) !== null && _this$db !== void 0 && _this$db.objectStoreNames.contains(tbName))) {
      var _this$db2;

      const _ref3 = tconfig || {},
            keyPath = _ref3.keyPath,
            _ref3$indexs = _ref3.indexs,
            indexs = _ref3$indexs === void 0 ? [] : _ref3$indexs,
            config = _objectWithoutProperties(_ref3, _excluded);

      let key = keyPath;
      let indexList = indexs;

      if (!key) {
        key = 'id';
        config.autoIncrement = true;

        if (!indexList.length) {
          indexList = [{
            name: 'id',
            prop: 'id',
            config: {
              unique: true
            }
          }];
        }
      }

      objectStore = (_this$db2 = this.db) === null || _this$db2 === void 0 ? void 0 : _this$db2.createObjectStore(tbName, _objectSpread(_objectSpread({}, config), {}, {
        keyPath: key
      }));
      indexList.forEach(index => this.createIndex(objectStore, index));
    }

    return objectStore;
  } // 创建index


  createIndex(tb, index) {
    if (!tb || !this.db) return false;
    let sotre;

    if (typeof tb === 'string') {
      sotre = this.db.transaction(tb).objectStore(tb);
    } else {
      sotre = tb;
    }

    const name = index.name,
          prop = index.prop,
          config = index.config;
    sotre.createIndex(name, prop, config);
    return true;
  } // 删除表中所有数据


  dropStore(tbName) {
    return new Promise((resolve, reject) => {
      if (!this.canuseIndex || !this.db) return reject();
      const objectStore = this.db.transaction(tbName).objectStore(tbName);
      const request = objectStore.openCursor();

      request.onsuccess = function (event) {
        const cursor = event.target.result;

        if (cursor) {
          cursor.delete();
        } else {
          resolve(true);
        }
      };

      request.onerror = function () {
        reject();
      };
    });
  } // 插入数据


  create(tbName, data) {
    var _this2 = this;

    return new Promise( /*#__PURE__*/function () {
      var _ref4 = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee3(resolve, reject) {
        var keyPath, isExist, request;
        return regeneratorRuntime.wrap(function _callee3$(_context3) {
          while (1) switch (_context3.prev = _context3.next) {
            case 0:
              if (!(!_this2.canuseIndex || !_this2.db)) {
                _context3.next = 2;
                break;
              }

              return _context3.abrupt("return", reject());

            case 2:
              keyPath = _this2.db.transaction([tbName], 'readwrite').objectStore(tbName).keyPath;
              _context3.next = 5;
              return _this2.findByPk(tbName, data[keyPath]);

            case 5:
              isExist = _context3.sent;
              if (isExist) resolve(true);
              request = _this2.db.transaction([tbName], 'readwrite').objectStore(tbName).add(data);

              request.onsuccess = function () {
                resolve(data);
              };

              request.onerror = function () {
                reject();
              };

            case 10:
            case "end":
              return _context3.stop();
          }
        }, _callee3);
      }));

      return function (_x3, _x4) {
        return _ref4.apply(this, arguments);
      };
    }());
  }

  bulkCreate(tbName, data) {
    var _this3 = this;

    return new Promise( /*#__PURE__*/function () {
      var _ref5 = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee5(resolve, reject) {
        var retList;
        return regeneratorRuntime.wrap(function _callee5$(_context5) {
          while (1) switch (_context5.prev = _context5.next) {
            case 0:
              if (!(!_this3.canuseIndex || !_this3.db)) {
                _context5.next = 2;
                break;
              }

              return _context5.abrupt("return", reject());

            case 2:
              if (!(!Array.isArray(data) || data.length === 0)) {
                _context5.next = 4;
                break;
              }

              return _context5.abrupt("return", resolve(true));

            case 4:
              _context5.next = 6;
              return Promise.all(data.map( /*#__PURE__*/function () {
                var _ref6 = _asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee4(d) {
                  return regeneratorRuntime.wrap(function _callee4$(_context4) {
                    while (1) switch (_context4.prev = _context4.next) {
                      case 0:
                        _context4.next = 2;
                        return _this3.create(tbName, d);

                      case 2:
                        return _context4.abrupt("return", _context4.sent);

                      case 3:
                      case "end":
                        return _context4.stop();
                    }
                  }, _callee4);
                }));

                return function (_x7) {
                  return _ref6.apply(this, arguments);
                };
              }()));

            case 6:
              retList = _context5.sent;
              if (retList.every(t => !!t)) resolve(true);else reject();

            case 8:
            case "end":
              return _context5.stop();
          }
        }, _callee5);
      }));

      return function (_x5, _x6) {
        return _ref5.apply(this, arguments);
      };
    }());
  } // 根据主键查找


  findByPk(tbName, keyPath) {
    return new Promise((resolve, reject) => {
      if (!this.canuseIndex || !this.db) return reject();
      const transaction = this.db.transaction([tbName]);
      const objectStore = transaction.objectStore(tbName);
      const request = objectStore.get(keyPath);

      request.onerror = function () {
        reject();
      };

      request.onsuccess = function () {
        if (request.result) {
          resolve(request.result);
        } else {
          resolve(null);
        }
      };
    });
  } // 根据索引查找


  findByIndex(tbName, indexName, keyPath) {
    return new Promise((resolve, reject) => {
      if (!this.canuseIndex || !this.db) return reject();
      const request = this.db.transaction([tbName]).objectStore(tbName).index(indexName).get(keyPath);

      request.onerror = function () {
        reject();
      };

      request.onsuccess = function (e) {
        const result = e.target.result;

        if (result) {
          resolve(result);
        } else {
          resolve(null);
        }
      };
    });
  } //   遍历指定表


  query(tbName, filter) {
    return new Promise((resolve, reject) => {
      const list = [];
      if (!this.canuseIndex || !this.db) return reject();
      const objectStore = this.db.transaction(tbName).objectStore(tbName);
      const request = objectStore.openCursor();

      request.onsuccess = function (event) {
        const cursor = event.target.result;

        if (cursor) {
          if (!filter || filter(cursor.value)) list.push(cursor.value);
          cursor.continue();
        } else {
          resolve(list);
        }
      };

      request.onerror = function () {
        reject();
      };
    });
  } //   更新指定数据


  update(tbName, data) {
    return new Promise((resolve, reject) => {
      if (!this.canuseIndex || !this.db) return reject();
      const request = this.db.transaction([tbName], 'readwrite').objectStore(tbName).put(data);

      request.onsuccess = function () {
        resolve(data);
      };

      request.onerror = function () {
        reject();
      };
    });
  } // 删除数据


  destroy(tbName, keyPath) {
    return new Promise((resolve, reject) => {
      if (!this.canuseIndex || !this.db) return reject();
      const request = this.db.transaction([tbName], 'readwrite').objectStore(tbName).delete(keyPath);

      request.onsuccess = function () {
        resolve(true);
      };

      request.onerror = function (e) {
        reject(e);
      };
    });
  }

  initTb() {
    this.tbConfigs.forEach(_ref7 => {
      let name = _ref7.name,
          config = _objectWithoutProperties(_ref7, _excluded2);

      this.createStore(name, config);
    });
  }

}

export default IndexdbHelper;